EP0968615B1 - Procedure for ensuring the operation of signalling channels in a v5 interface - Google Patents
Procedure for ensuring the operation of signalling channels in a v5 interface Download PDFInfo
- Publication number
- EP0968615B1 EP0968615B1 EP98908129A EP98908129A EP0968615B1 EP 0968615 B1 EP0968615 B1 EP 0968615B1 EP 98908129 A EP98908129 A EP 98908129A EP 98908129 A EP98908129 A EP 98908129A EP 0968615 B1 EP0968615 B1 EP 0968615B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- interface
- channels
- composition
- conjunction
- procedure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
- H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
- H04Q11/0435—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/12—Arrangements providing for calling or supervisory signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/14—Monitoring arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13031—Pulse code modulation, PCM
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13166—Fault prevention
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13167—Redundant apparatus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13176—Common channel signaling, CCS7
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13204—Protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13209—ISDN
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13292—Time division multiplexing, TDM
Definitions
- the present invention relates to a procedure as defined in the preamble of claim 1 for ensuring the operation of protected signalling channels in a V5 interface between a local exchange and an access node in conjunction with a redefinition of the composition of the interface.
- V5 interfaces enable subscribers belonging to a physically separate local network to be connected to a telephone exchange using a standard interface.
- V5 interface expressly refers to a dynamic concentrator interface (V5.2) as defined in the ETS 300 347 standard series, consisting of one or more (1 - 16) PCM (Pulse Code Modulation) cables.
- PCM Peripheral Component Interconnect Express
- One PCM cable comprises 32 channels, each of which with a transfer rate of 64 kbit/s, i.e. 2048 kbit/s in all.
- the V5.2 interface supports analogue telephones as used in the public telephone network, digital, such as ISDN (Integrated Services Digital Network) basic and system subscriber connections as well as other analogue or digital terminal equipment based on semi-fixed connections.
- ISDN Integrated Services Digital Network
- Certain time slots in the V5 interface serve to transmit the protocols used for controlling the interface itself and the calls transmitted over the interface.
- a C-channel or a 64 kbit/s time slot reserved for this purpose serves to transmit information that may belong e.g. to the Control protocol, Link control protocol, Protection protocol or BCC protocol of the V5 interface, or which may consist of PSTN signalling or ISDN data.
- a C-channel can be reserved for time slots 16, 15 and/or 31 in the PCM line or V5 interface link.
- the system automatically creates C-channels for the critical protocols (Control, Link control, BCC and Protection), whereas the operator can place the PSTN signalling as desired, either in the same channel with the critical protocols or in another C-channel.
- the operator may allocate a maximum of three signalling channels as so-called backup channels. These channels are resorted to in the case of a failure of the link to which the channels were originally allocated.
- a link whose physical C-channel in time slot 16 transmits the Control, Link control, BCC and Protection protocols is defined as the primary link.
- a link whose physical C-channel in time slot 16 only transmits the Protection protocol is a secondary link.
- Changing the data means e.g. that a signalling channel is transferred to another time slot or that additional signalling channels are introduced.
- Such changes can be effected using the so-called reprovision function defined in the standard, in which case the altered data are given a new "designation" (provision variant) at both ends, i.e. in the local exchange and in the access node.
- provision variant is a parameter which is checked in conjunction with the start-up of the V5 interface. This verification serves to ensure that both the local exchange and the access node observe the same composition in the V5 interface.
- Composition means in the first place the locations and order of the signalling channels.
- the hardware When the parameter in question is assigned a new value, this means that e.g. the signalling channels have a new location.
- the changes are activated at both ends, i.e. when the interface is started up, the hardware first ensures via signalling that the new value of the "provision variant " is known at both ends, whereupon the changes of composition or configuration are made independently according to the parameter in question.
- the changes are made independently at both ends without altering the value of the provision variant parameter.
- the changes When the changes are activated, the defined changes are made automatically at both ends and the interface is started up.
- the locations of the signalling channels in an active interface may change in consequence of a protection switch-over of a signalling channel. This creates a situation where the interface configuration is no longer consistent with the configuration originally defined by the operator.
- the problem is that the above-mentioned standards do not define whether the possible protection switch-over cases should be taken into account or not when a new configuration or composition is introduced. Further, when the composition of the interface is being defined, it must also be taken into account that one of the links may have been damaged and that consequently the signalling channels transmitted via that link are switched over to another link.
- Figures 1a and 1b present an example of such a situation.
- Fig. 1a illustrates normal operation between a local exchange LE and an access node AN.
- the signalling channel which may be e.g. the BCC protocol, has been allocated to the topmost link in the V5 interface. Further, a backup channel has been allocated to the bottommost link in the interface.
- Fig. 1b illustrates an example situation where the backup channel and signalling channel are swapped, i.e. the signalling channel is switched over to the backup channel when the link is damaged.
- the object of the present invention is to eliminate the problems described above.
- a specific object of the present invention is to present a new procedure that makes it possible to flexibly ensure the activation of the signalling channels in a V5 interface when a new composition is defined for the V5 interface without the reprovision function.
- a V5 interface between a local exchange and an access node said interface comprising at least two links, to ensure the operation of the signalling channels in conjunction with a redefinition of the interface composition, in which redefinition changes are made in the V5 interface data, such as the placement of signalling channels on the links, according to the invention
- the operation of protected channels is ensured in conjunction with restarting by activating the protected channels on the channels defined for them in the new composition and/or on the channels to which they were transferred in conjunction with the protection switch-over.
- the redefinition of the V5 interface composition is preferably carried out independently both in the local exchange and in the access node without changing the value of the interface composition parameter.
- the channels transferred to a backup channel in conjunction with protection switch-over are left at the locations to which they were transferred in conjunction with the switch-over, regardless of the redefined composition of the V5 interface.
- changes in conjunction with a redefinition of the composition of a V5 interface are made in the original composition regardless of protection switch-over operations carried out in the V5 interface.
- Figures 1a and 1b present a V5 interface according to the invention between a local exchange LE and an access node AN.
- a signalling channel has been configured to use the topmost link in the V5 interface.
- a backup channel to which one of the signalling channels can be switched over has been configured to be carried by the bottom link.
- a switch-over of the signalling channel to the backup channel is carried out due to malfunction of the top link, in other words, the signalling channel originally allocated to the top link is transferred to the bottom link in place of the backup channel.
- Fig. 2 illustrates a solution according to the invention for ensuring the activation of the signalling channels when a new V5 interface composition is defined without using the reprovision function.
- protection switch-overs of signalling channels carried out previously in the interface are taken into account.
- Fig. 2a redefinition has been performed in which it has been decided that the original backup channel, which has been on the lowest link as shown in Fig. 1a, shall be removed.
- Fig. 2b illustrates another solution according to the invention for ensuring the activation of signalling channels.
- the changes are made in the composition originally created in the system by the operator, without taking into account any protection switch-overs carried out before.
- the system removes the signalling channel from the physical location where the operator had originally placed it, in this case from the lowest link.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Mobile Radio Communication Systems (AREA)
- Communication Control (AREA)
- Time-Division Multiplex Systems (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI971142 | 1997-03-18 | ||
FI971142A FI103624B1 (fi) | 1997-03-18 | 1997-03-18 | Menetelmä merkinantokanavien toiminnan varmistamiseksi V5-liitännässä |
PCT/FI1998/000198 WO1998042148A1 (en) | 1997-03-18 | 1998-03-05 | Procedure for ensuring the operation of signalling channels in a v5 interface |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0968615A1 EP0968615A1 (en) | 2000-01-05 |
EP0968615B1 true EP0968615B1 (en) | 2004-07-07 |
Family
ID=8548421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98908129A Expired - Lifetime EP0968615B1 (en) | 1997-03-18 | 1998-03-05 | Procedure for ensuring the operation of signalling channels in a v5 interface |
Country Status (9)
Country | Link |
---|---|
US (2) | US6278688B1 (pt) |
EP (1) | EP0968615B1 (pt) |
CN (1) | CN1116769C (pt) |
AU (1) | AU729032B2 (pt) |
BR (1) | BR9808195A (pt) |
CA (1) | CA2283823A1 (pt) |
DE (1) | DE69824954T2 (pt) |
FI (1) | FI103624B1 (pt) |
WO (1) | WO1998042148A1 (pt) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI103371B (fi) * | 1996-06-13 | 1999-06-15 | Nokia Telecommunications Oy | Menetelmä ja järjestelmä hätäliikenteen varmistamiseksi |
FI104399B (fi) * | 1997-02-28 | 2000-01-14 | Nokia Networks Oy | Menetelmä V5-liitännän käynnistymisen varmentamiseksi |
JPH11252080A (ja) | 1998-02-27 | 1999-09-17 | Fujitsu Ltd | 伝送路インタフェース装置 |
FI104771B (fi) | 1998-03-13 | 2000-03-31 | Nokia Networks Oy | Menetelmä ja järjestelmä V5-standardin mukaisen PSTN-protokollan uudelleenkäynnistysproseduurin varmistamiseksi |
JPH11317970A (ja) * | 1998-05-06 | 1999-11-16 | Fujitsu Ltd | V5インターフェースにおけるリプロビジョニング方法及びそれを実施するネットワークシステム |
FI105984B (fi) * | 1998-06-04 | 2000-10-31 | Nokia Networks Oy | Menetelmä ja järjestelmä liitännän hallitsemiseksi tietoliikennejärjestelmässä |
DE19854654B4 (de) * | 1998-11-26 | 2005-05-12 | Siemens Ag | Verfahren zum Hochfahren einer Zwischenschnittstelle, z. B. einer V5.2-Schnittstelle |
FI991258A (fi) * | 1999-06-02 | 2000-12-03 | Nokia Networks Oy | Menetelmä ja järjestelmä liitännän uudelleenmäärittelyyn |
KR100386561B1 (ko) * | 1999-10-21 | 2003-06-02 | 엘지전자 주식회사 | 데이터 링크 설정 방법 |
US6941388B1 (en) * | 2000-12-22 | 2005-09-06 | Cisco Technology, Inc. | Method and apparatus for handling connections in hot standby line cards |
KR20020055957A (ko) * | 2000-12-29 | 2002-07-10 | 엘지전자 주식회사 | 무선가입자망에서 하나 이상의 링크 가용시 브이5.2인터페이스 활성화 방법 |
EP1257092B1 (en) * | 2001-05-08 | 2005-01-05 | Agere Systems Guardian Corporation | Dynamic frequency selection in a wireless LAN with channel swapping between access points |
US8045694B2 (en) * | 2001-12-21 | 2011-10-25 | Comnet International, Co. | Interface for providing connection of a switch and a VMS using an IP network |
US7006611B2 (en) * | 2001-12-21 | 2006-02-28 | Comnet International, Co., | Interface for a telecommunication system |
KR100869879B1 (ko) * | 2001-12-24 | 2008-11-24 | 주식회사 케이티 | 액세스 게이트웨이의 내부 호 처리 장치 및 그 방법 |
KR100431200B1 (ko) * | 2001-12-28 | 2004-05-12 | 한국전자통신연구원 | 가입자망 및 광대역 종합통신망(b-isdn)에서vb5.1인터페이스 기동방법 |
MXPA04011993A (es) * | 2002-06-07 | 2005-03-07 | Nokia Corp | Aparato y metodo asociado para facilitar las comunicaciones en un sistema de radiocomunicacion que provee comunicaciones de datos a multiples velocidades de transmision de datos. |
DE10235646A1 (de) * | 2002-08-02 | 2004-02-19 | Marconi Communications Gmbh | Fernmeldenetz und Verfahren zu dessen Aufrüstung |
TWI304691B (en) * | 2006-03-31 | 2008-12-21 | Hon Hai Prec Ind Co Ltd | System and method for translating signaling |
CN101075900B (zh) * | 2006-05-19 | 2010-05-26 | 鸿富锦精密工业(深圳)有限公司 | 网络装置及其时间同步方法 |
US10069965B2 (en) | 2013-08-29 | 2018-09-04 | Unify Gmbh & Co. Kg | Maintaining audio communication in a congested communication channel |
RU2658602C2 (ru) * | 2013-08-29 | 2018-06-22 | Юнифай Гмбх Унд Ко. Кг | Поддержание аудиосвязи в перегруженном канале связи |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5418776A (en) * | 1993-02-26 | 1995-05-23 | At&T Corp. | Emergency local switching |
JPH10510109A (ja) | 1994-11-30 | 1998-09-29 | テレフオンアクチーボラゲツト エル エム エリクソン | 無線通信システム |
US5805666A (en) | 1995-02-28 | 1998-09-08 | Sony Corporation | Method of and apparatus for diagnosing personal communication system |
DE19508081A1 (de) * | 1995-03-08 | 1996-09-12 | Sel Alcatel Ag | Verfahren zum Steuern eines Zugangsnetzes sowie Vermittlungsstelle und Zugangsnetz damit |
DE19533961A1 (de) * | 1995-09-13 | 1997-03-20 | Siemens Ag | Verfahren zum Laden von Software in Kommunikationssystemen mit nichtredundanten, dezentralen Einrichtungen |
SE505660C2 (sv) | 1995-10-31 | 1997-09-29 | Ericsson Telefon Ab L M | Anordning och metod vid telekommunikationsnätverk |
JPH09233181A (ja) * | 1996-02-21 | 1997-09-05 | Fujitsu Ltd | V5インタフェースの構成方式 |
SE506729C2 (sv) * | 1996-03-19 | 1998-02-02 | Ericsson Telefon Ab L M | Metod och anordning för installation av nya abonnenter |
US5910980A (en) * | 1996-06-05 | 1999-06-08 | Fujitsu Limited | Calling subscriber information notification |
FI103372B1 (fi) * | 1996-06-20 | 1999-06-15 | Nokia Telecommunications Oy | Menetelmä ja järjestelmä hätäliikenteen varmistamiseksi |
FI104399B (fi) * | 1997-02-28 | 2000-01-14 | Nokia Networks Oy | Menetelmä V5-liitännän käynnistymisen varmentamiseksi |
FI973312A (fi) * | 1997-08-12 | 1999-02-13 | Nokia Telecommunications Oy | Menetelmä tilaajan osoittamiseksi ketjutetussa V5-liitännässä |
-
1997
- 1997-03-18 FI FI971142A patent/FI103624B1/fi active
-
1998
- 1998-03-05 AU AU66246/98A patent/AU729032B2/en not_active Ceased
- 1998-03-05 CA CA002283823A patent/CA2283823A1/en not_active Abandoned
- 1998-03-05 WO PCT/FI1998/000198 patent/WO1998042148A1/en active IP Right Grant
- 1998-03-05 DE DE69824954T patent/DE69824954T2/de not_active Expired - Lifetime
- 1998-03-05 CN CN98801724A patent/CN1116769C/zh not_active Expired - Lifetime
- 1998-03-05 EP EP98908129A patent/EP0968615B1/en not_active Expired - Lifetime
- 1998-03-05 BR BR9808195-0A patent/BR9808195A/pt not_active IP Right Cessation
-
1999
- 1999-06-21 US US09/336,862 patent/US6278688B1/en not_active Ceased
-
2003
- 2003-08-21 US US10/645,345 patent/USRE40451E1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6278688B1 (en) | 2001-08-21 |
EP0968615A1 (en) | 2000-01-05 |
FI103624B (fi) | 1999-07-30 |
CN1243639A (zh) | 2000-02-02 |
AU6624698A (en) | 1998-10-12 |
USRE40451E1 (en) | 2008-08-05 |
FI971142A (fi) | 1998-09-19 |
DE69824954T2 (de) | 2005-08-25 |
FI103624B1 (fi) | 1999-07-30 |
BR9808195A (pt) | 2000-05-16 |
FI971142A0 (fi) | 1997-03-18 |
CN1116769C (zh) | 2003-07-30 |
DE69824954D1 (de) | 2004-08-12 |
AU729032B2 (en) | 2001-01-25 |
WO1998042148A1 (en) | 1998-09-24 |
CA2283823A1 (en) | 1998-09-24 |
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